U.S. flag

An official website of the Department of Health & Human Services

AHRQ: Agency for Healthcare Research and Quality

Search AHRQ

For an exact phrase match, enclose search terms in double quotes.

Go to Advanced Search
Go to Basic Search

Results

Total Results: 4,767 records

Showing results for "sampling".

  1. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)

    hcup-us.ahrq.gov/reports/methods/2005-07.pdf
    January 01, 2005 - The KID includes a sample of pediatric discharges from all hospitals in the sampling frame. … As the sampling fraction f approaches 1, the sampling variance approaches zero. … It can accommodate very large sampling frames. … PROC SURVEYSELECT accepts the sampling frame as a SAS data set. … without replacement of sampling units within strata.

  2. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)

    hcup-us.ahrq.gov/db/nation/kid/reports/CalculatingKIDVariances.pdf
    December 16, 2005 - The KID includes a sample of pediatric discharges from all hospitals in the sampling frame. … As the sampling fraction f approaches 1, the sampling variance approaches zero. … It can accommodate very large sampling frames. … PROC SURVEYSELECT accepts the sampling frame as a SAS data set. … without replacement of sampling units within strata.

  3. Introduction to the NEDS (pdf file)

    hcup-us.ahrq.gov/db/nation/neds/NEDSIntroduction2022.pdf
    November 01, 2024 - Size of NEDS Target Universe, Sampling Frame, and Sample, 2022 .................... … Sampling Frame of the NEDS The sampling frame of the NEDS does not cover the entire target universe. … The sampling design consisted of a stratified, single-stage cluster sample. … NEDS Sampling Stratifiers Table A5. … Size of NEDS Target Universe, Sampling Frame, and Sample, 2022 Table A6.

  4. HCUP_methods_series_cover.ai (pdf file)

    hcup-us.ahrq.gov/reports/methods/TrendReport2005_1.pdf
    March 19, 2004 - Added States to the Sampling Frame. … Redefined the Hospital Stratification Variables for Sampling. … For example, New York was added to the NIS sampling frame in 1993. … This decrease is associated with the expanding sampling frame. … In particular, as the sampling frame increased over time, we were more successful in sampling 20 percent

  5. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2010

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2010.jsp
    January 01, 2010 - The NIS-Trends weights account for this change in NIS sampling. … SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … for hospital-level sampling weights. … were fewer than two hospitals in a sampling stratum.

  6. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2011

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2011.jsp
    January 01, 2011 - The NIS-Trends weights account for this change in NIS sampling. … SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … for hospital-level sampling weights. … were fewer than two hospitals in a sampling stratum.

  7. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2019

    hcup-us.ahrq.gov/db/nation/kid/kid_2019_introduction.jsp
    January 01, 2012 - Changes to Sampling and Weighting Strategy Beginning with the 2000 KID Sampling Procedure SAMPLE … Return to Contents SAMPLING OF DISCHARGES Sampling of Discharges Included in the KID Unlike … sampling frame. … R k is the frame sampling rate for non-newborns from all non-newborn discharges in the sampling frame … "KID Sampling-Frame Hospitals" lists hospitals with pediatric discharges in the sampling frame after

  8. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/NIS_2008_INTRODUCTION.pdf
    January 01, 2008 - The NIS-Trends weights account for this change in NIS sampling. … SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … for hospital-level sampling weights. … No hospitals were dropped from the sampling frame. … were fewer than two hospitals in a sampling stratum.

  9. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2009

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2009.jsp
    January 01, 2009 - The NIS-Trends weights account for this change in NIS sampling. … SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … for hospital-level sampling weights. … were fewer than two hospitals in a sampling stratum.

  10. Sample Conference Grant Applications | Agency for Healthcare Research and Quality

    www.ahrq.gov/funding/fund-opps/sample-applications.html
    December 01, 2022 - A sampling of notable conference grant applications is provided here.

  11. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2012

    hcup-us.ahrq.gov/db/nation/kid/kid_2012_introduction.jsp
    January 01, 1998 - Return to Introduction SAMPLING OF DISCHARGES Sampling of Discharges Included in the KID … Sampling Procedure The KID includes a sample of pediatric discharges from all hospitals in the sampling … A k is the total number of adjusted births in the restricted sampling frame. … R k is the frame sampling rate for non-newborns from all non-newborn discharges in the sampling frame … "KID Sampling-Frame Hospitals" lists hospitals with pediatric discharges in the sampling frame after

  12. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/NIS_2007_INTRODUCTION.pdf
    January 01, 2007 - SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … Confidentiality of Hospitals - Limitation on Sampling Limitations on sampling were needed for the following … No hospitals were dropped from the sampling frame. … were fewer than two hospitals in a sampling stratum.

  13. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2016

    hcup-us.ahrq.gov/db/nation/kid/kid_2016_introduction.jsp
    January 01, 2016 - Return to Introduction SAMPLING OF DISCHARGES Sampling of Discharges Included in the KID … Sampling Procedure The KID includes a sample of pediatric discharges from all hospitals in the sampling … A k is the total number of adjusted births in the restricted sampling frame. … R k is the frame sampling rate for non-newborns from all non-newborn discharges in the sampling frame … "KID Sampling-Frame Hospitals" lists hospitals with pediatric discharges in the sampling frame after

  14. Introduction To The HCUP Nationwide Emergency Department Sample (NEDS) 2021 (pdf file)

    hcup-us.ahrq.gov/db/nation/neds/NEDSIntroduction2021.pdf
    March 01, 2024 - NEDS Sampling Stratifiers ........................................................................... … Size of NEDS Target Universe, Sampling Frame, and Sample, 2021 ..................... … Sampling Frame of the NEDS The sampling frame of the NEDS does not cover the entire target universe. … Variance estimates must account for both the sampling design and the form of the statistic. … The sampling design consisted of a stratified, single-stage cluster sample.

  15. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2016

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2016.jsp
    January 01, 2016 - The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The NIS sampling and weighting strategy was also revised in 1998. … Variance estimates must consider both the sampling design and the form of the statistic. … Thus, the sampling rate would not always be 20 percent for each stratum.

  16. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2018

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2018.jsp
    January 01, 2018 - The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The NIS sampling and weighting strategy was also revised in 1998. … Variance estimates must consider both the sampling design and the form of the statistic. … Thus, the sampling rate would not always be 20 percent for each stratum.

  17. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2017

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2017.jsp
    January 01, 2017 - The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The NIS sampling and weighting strategy was also revised in 1998. … Variance estimates must consider both the sampling design and the form of the statistic. … Thus, the sampling rate would not always be 20 percent for each stratum.

  18. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2014

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2014.jsp
    January 01, 2014 - The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … The NIS sampling and weighting strategy was also revised in 1998. … and how well it is represented in the sampling frame. … Thus, the sampling rate would not always be 20 percent within each stratum.

  19. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)

    hcup-us.ahrq.gov/db/nation/neds/NEDS2018Introduction.pdf
    November 01, 2020 - Sampling Frame of the NEDS The sampling frame of the NEDS does not cover the entire target universe. … Appendix A, Table A6 lists the sampling rates by region and stratum for the NEDS. … Variance estimates must account for both the sampling design and the form of the statistic. … The sampling design consisted of a stratified, single-stage cluster sample. … NEDS Sampling Rates by Census Region and Stratum, 2018 NEDS Stratum Number of Hospital-Based EDs Sampling

  20. Checklist for Working with the NIS

    hcup-us.ahrq.gov/db/nation/nis/nischecklist.jsp
    November 01, 2024 - Return to top Research Design ⬜ Learn how to account for the NIS sampling design. … Accounting for the sampling design is critical for accurate analyses. … The sampling design of the NIS does not support State-level analyses. … sampling rates vary. … For more information, review the "Sampling Design of the NIS" section of the Introduction to the NIS
SHARE:
Facebook Twitter Print Facebook Share

Similar Terms:

Search the AHRQ Archive

Information and reports more than 5 years old may be found in the AHRQ Archive site.

Search Archive

Search Within A Specific AHRQ Site

Click to show only results for the selected site.

hcup-us.ahrq.gov (1763)

www.ahrq.gov (1391)

digital.ahrq.gov (691)

www.uspreventiveservicestaskforce.org (600)

psnet.ahrq.gov (231)

integrationacademy.ahrq.gov (29)

cdsic.ahrq.gov (21)

cds.ahrq.gov (20)

datatools.ahrq.gov (15)

cahpsdatabase.ahrq.gov (5)

qualityindicators.ahrq.gov (1)